Lighting What is optimal airflow for Telos?

[MedGrower]

I am entertaining this question after trying out Telos 0008 in my grow cabinet of 1.2m3 with 160 m3/h airflow. Temperatures rose to 30 C in there and that is about 4 C too warm from where I would want it.

I feel like this is a topic we could discuss about and try to define what is optimal airflow ratio to the growspace with your Telos growlight.

I am venting into the same room with ambient temperature approx. 21 C. I figured as a general rule it would be good to replace the air of the growspace 3 to 4 times in a minute at that situation since any lesser airflow seems to keep the temps up quite a bit. I always have had 280m3/h airflow in my grow cabinets but I am currently working to update my ventilation to be quieter and more energy efficient.

 

[Vlada]

I am entertaining this question after trying out Telos 0008 in my grow cabinet of 1.2m3 with 160 m3/h airflow. Temperatures rose to 30 C in there and that is about 4 C too warm from where I would want it.

I feel like this is a topic we could discuss about and try to define what is optimal airflow ratio to the growspace with your Telos growlight.

I am venting into the same room with ambient temperature approx. 21 C. I figured as a general rule it would be good to replace the air of the growspace 3 to 4 times in a minute at that situation since any lesser airflow seems to keep the temps up quite a bit. I always have had 280m3/h airflow in my grow cabinets but I am currently working to update my ventilation to be quieter and more energy efficient.

I can't give advice on aurflow but considering your current situation and temps and need to stay discret with quiet airflow, maybe you should consider adding one or, for that space, better two CO2 Boost Kits. My space is sealed, 0.75m2, one HS1 and dehumifider and temps are 31-35C. Room temps16-20C but tent is sealed. What I saw is in my space one CO2 Boost Kit does good job, considering I use only one HS1.
Your place is not sealed but if you use vents to point CO2 straight to your plants I think it will do the job.

 

[MedGrower]

I appriciate the advice but I'd rather not do co2 for now. Instead I invested on bigger inline fan that can be run on lower rpm's and has noise insulation. Expensive but that can give me 260 m3/h airflow with 18dB noise and 20w consumption. Temperature dropped to 26.4C when ambient temperature in the room was 22C.

So that leads me to conclude that optimal airflow in my cabinet with one Telos 0008 was 215 m3/h per 1m3 of space. How about others?

 

[KonopCh]

I appriciate the advice but I'd rather not do co2 for now. Instead I invested on bigger inline fan that can be run on lower rpm's and has noise insulation. Expensive but that can give me 260 m3/h airflow with 18dB noise and 20w consumption.

That's some nice fan. Could you give me link to shop, please?

 

[Trichome farmer]

I appriciate the advice but I'd rather not do co2 for now. Instead I invested on bigger inline fan that can be run on lower rpm's and has noise insulation. Expensive but that can give me 260 m3/h airflow with 18dB noise and 20w consumption. Temperature dropped to 26.4C when ambient temperature in the room was 22C.

So that leads me to conclude that optimal airflow in my cabinet with one Telos 0008 was 215 m3/h per 1m3 of space. How about others?

Can you tell.me the model of fan you got and how quiet you think it is compared to.a traditional can fan lets say I wouldnt mind spending extra to get some quiet at night time

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[MedGrower]

It is S&P TD-350 Silent that I got. Here is a link to the manufacturer, they also have PDF with details: http://www.solerpalau.com/product/residential/in-line-duct-fans/td-silent.html

I'd advice to go with the low RPMs since it keeps the vibrations and sound minimal. I caught myself twice feaking out momentarily thinking I forgot the fan off.. Cost is quite high and the fan is bulky but its pretty neat.

 

[Trichome farmer]

It is S&P TD-350 Silent that I got. Here is a link to the manufacturer, they also have PDF with details: http://www.solerpalau.com/product/residential/in-line-duct-fans/td-silent.html

I'd advice to go with the low RPMs since it keeps the vibrations and sound minimal. I caught myself twice feaking out momentarily thinking I forgot the fan off.. Cost is quite high and the fan is bulky but its pretty neat.

Thanks.il cheak it out now hate the sound of rushing air when im trying to sleep got used to it now but man I miss the.silence [emoji23][emoji23]

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[Trichome farmer]

Thanks.il cheak it out now hate the sound of rushing air when im trying to sleep got used to it now but man I miss the.silence [emoji23][emoji23]

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Just had a kook now not too much.more than.what id pay for.a.standard fan so.if.you give.your.stamp.of.approval its going on the 2018 shopping list

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[MikeyB420]

Interesting subject!

I have been using a 4" RVK extractor (image below) during my previous grows which, I've found to be quiet and energy efficient!

!85 cubic metres per hour was fine for the small tent I had but, having now effectively doubled the size of my tent and it has taken me almost a week to bring the temps up to a point when I feel happy starting the grow (25c with the aid of a dodgy electric heater, the central heating system is somewhat hit or miss, on the reliability front!), I'm not so sure it will be able to cope with 6 plants. Wow, I can waffle with the best!



I don't want really to go and have to buy another extractor fan but, I may enlarge by an inch or two?





Mikey

 

[BRICH999]

Don't have much to add to maths and sizing fans but holy cow what a difference insulated duct makes. Made my noisy fan not noisy, only problem I had was the smallest order was like 50 feet and I needed about 5